MADISON COUNTY, Ky. (WKYT) - Charges have been upgraded against a man police say caused a series of crashes that led to two people being killed.

Kentucky State Police have now charged 56-year-old Bryan Mangan, of South Bend, Indiana, with nine counts of wanton endangerment.

Mangan had already been charged with charged with aggravated DUI.

Investigators say Mangan crashed into a guardrail and other vehicles in the northbound lanes of Interstate 75 Sunday night near the 92 mile marker in Madison County. That crash led to two people getting out of their cars, attempting to help, when they were hit by an SUV.

Meredith Buscher, 22, of Richmond, was taken to UK Hospital where KSP says she died from her injuries. Jeffrey Campbell, 30, of Louisville, died at the scene. Another person from Fort Thomas in northern Kentucky was taken to UK Hospital with injuries.

Mangan's SUV that flipped on its roof, but only received minor injuries in the crash.

Buscher's friends say they will remember her for her laugh and her compassion.

"She was the happiest person you'd ever meet," said friend Kelly Ruhl. "She lit up the room the minute she walked in. There was no chance of you not smiling when you were around her," remembered Sara Cornelison.

Jeffrey Campbell's family considers him a hero for trying to help those involved in the I-75 wreck.

"He was incredible. He had two little girls, and he loved them more than anything he had in him. He was a father, he was a brother, he was a son. He was definitely not just that guy on I 75. He died a hero," noted sister Melissa Campbell.

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